Community-acquired or Nursing home-acquired with risk factors for anaerobes

  • poor oral hygiene
  • severe periodontal disease
  • putrid sputum
Usual Pathogens

S. pneumoniae
H. influenzae
S. aureus
Enterobacterales
Oral anaerobes
Streptococcus spp
Eikenella corrodens

 

Empiric Therapy Dose Duration
Amoxicillin-clavulanate 875mg PO bid 5-7 days
or    
[Ceftriaxone 1-2g IV daily 5-7 days
+    
Metronidazole IV/PO] 500mg IV/PO q12h  

Alternative

Empiric Therapy Dose Duration
Levofloxacin 750mg PO daily 5-7 days
+    
Metronidazole IV/PO 500mg IV/PO q12h